fs/afs/afs_vl.h

   1 /* AFS Volume Location Service client interface
   2  *
   3  * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  */
  11
  12 #ifndef AFS_VL_H
  13 #define AFS_VL_H
  14
  15 #include "afs.h"
  16
  17 #define AFS_VL_PORT             7003    /* volume location service port */
  18 #define VL_SERVICE              52      /* RxRPC service ID for the Volume Location service */
  19 #define YFS_VL_SERVICE          2503    /* Service ID for AuriStor upgraded VL service */
  20
  21 enum AFSVL_Operations {
  22         VLGETENTRYBYID          = 503,  /* AFS Get VLDB entry by ID */
  23         VLGETENTRYBYNAME        = 504,  /* AFS Get VLDB entry by name */
  24         VLPROBE                 = 514,  /* AFS probe VL service */
  25         VLGETENTRYBYIDU         = 526,  /* AFS Get VLDB entry by ID (UUID-variant) */
  26         VLGETENTRYBYNAMEU       = 527,  /* AFS Get VLDB entry by name (UUID-variant) */
  27         VLGETADDRSU             = 533,  /* AFS Get addrs for fileserver */
  28         YVLGETENDPOINTS         = 64002, /* YFS Get endpoints for file/volume server */
  29         VLGETCAPABILITIES       = 65537, /* AFS Get server capabilities */
  30 };
  31
  32 enum AFSVL_Errors {
  33         AFSVL_IDEXIST           = 363520,       /* Volume Id entry exists in vl database */
  34         AFSVL_IO                = 363521,       /* I/O related error */
  35         AFSVL_NAMEEXIST         = 363522,       /* Volume name entry exists in vl database */
  36         AFSVL_CREATEFAIL        = 363523,       /* Internal creation failure */
  37         AFSVL_NOENT             = 363524,       /* No such entry */
  38         AFSVL_EMPTY             = 363525,       /* Vl database is empty */
  39         AFSVL_ENTDELETED        = 363526,       /* Entry is deleted (soft delete) */
  40         AFSVL_BADNAME           = 363527,       /* Volume name is illegal */
  41         AFSVL_BADINDEX          = 363528,       /* Index is out of range */
  42         AFSVL_BADVOLTYPE        = 363529,       /* Bad volume type */
  43         AFSVL_BADSERVER         = 363530,       /* Illegal server number (out of range) */
  44         AFSVL_BADPARTITION      = 363531,       /* Bad partition number */
  45         AFSVL_REPSFULL          = 363532,       /* Run out of space for Replication sites */
  46         AFSVL_NOREPSERVER       = 363533,       /* No such Replication server site exists */
  47         AFSVL_DUPREPSERVER      = 363534,       /* Replication site already exists */
  48         AFSVL_RWNOTFOUND        = 363535,       /* Parent R/W entry not found */
  49         AFSVL_BADREFCOUNT       = 363536,       /* Illegal Reference Count number */
  50         AFSVL_SIZEEXCEEDED      = 363537,       /* Vl size for attributes exceeded */
  51         AFSVL_BADENTRY          = 363538,       /* Bad incoming vl entry */
  52         AFSVL_BADVOLIDBUMP      = 363539,       /* Illegal max volid increment */
  53         AFSVL_IDALREADYHASHED   = 363540,       /* RO/BACK id already hashed */
  54         AFSVL_ENTRYLOCKED       = 363541,       /* Vl entry is already locked */
  55         AFSVL_BADVOLOPER        = 363542,       /* Bad volume operation code */
  56         AFSVL_BADRELLOCKTYPE    = 363543,       /* Bad release lock type */
  57         AFSVL_RERELEASE         = 363544,       /* Status report: last release was aborted */
  58         AFSVL_BADSERVERFLAG     = 363545,       /* Invalid replication site server flag */
  59         AFSVL_PERM              = 363546,       /* No permission access */
  60         AFSVL_NOMEM             = 363547,       /* malloc/realloc failed to alloc enough memory */
  61 };
  62
  63 enum {
  64         YFS_SERVER_INDEX        = 0,
  65         YFS_SERVER_UUID         = 1,
  66         YFS_SERVER_ENDPOINT     = 2,
  67 };
  68
  69 enum {
  70         YFS_ENDPOINT_IPV4       = 0,
  71         YFS_ENDPOINT_IPV6       = 1,
  72 };
  73
  74 #define YFS_MAXENDPOINTS        16
  75
  76 /*
  77  * maps to "struct vldbentry" in vvl-spec.pdf
  78  */
  79 struct afs_vldbentry {
  80         char            name[65];               /* name of volume (with NUL char) */
  81         afs_voltype_t   type;                   /* volume type */
  82         unsigned        num_servers;            /* num servers that hold instances of this vol */
  83         unsigned        clone_id;               /* cloning ID */
  84
  85         unsigned        flags;
  86 #define AFS_VLF_RWEXISTS        0x1000          /* R/W volume exists */
  87 #define AFS_VLF_ROEXISTS        0x2000          /* R/O volume exists */
  88 #define AFS_VLF_BACKEXISTS      0x4000          /* backup volume exists */
  89
  90         afs_volid_t     volume_ids[3];          /* volume IDs */
  91
  92         struct {
  93                 struct in_addr  addr;           /* server address */
  94                 unsigned        partition;      /* partition ID on this server */
  95                 unsigned        flags;          /* server specific flags */
  96 #define AFS_VLSF_NEWREPSITE     0x0001  /* Ignore all 'non-new' servers */
  97 #define AFS_VLSF_ROVOL          0x0002  /* this server holds a R/O instance of the volume */
  98 #define AFS_VLSF_RWVOL          0x0004  /* this server holds a R/W instance of the volume */
  99 #define AFS_VLSF_BACKVOL        0x0008  /* this server holds a backup instance of the volume */
 100 #define AFS_VLSF_UUID           0x0010  /* This server is referred to by its UUID */
 101 #define AFS_VLSF_DONTUSE        0x0020  /* This server ref should be ignored */
 102         } servers[8];
 103 };
 104
 105 #define AFS_VLDB_MAXNAMELEN 65
 106
 107
 108 struct afs_ListAddrByAttributes__xdr {
 109         __be32                  Mask;
 110 #define AFS_VLADDR_IPADDR       0x1     /* Match by ->ipaddr */
 111 #define AFS_VLADDR_INDEX        0x2     /* Match by ->index */
 112 #define AFS_VLADDR_UUID         0x4     /* Match by ->uuid */
 113         __be32                  ipaddr;
 114         __be32                  index;
 115         __be32                  spare;
 116         struct afs_uuid__xdr    uuid;
 117 };
 118
 119 struct afs_uvldbentry__xdr {
 120         __be32                  name[AFS_VLDB_MAXNAMELEN];
 121         __be32                  nServers;
 122         struct afs_uuid__xdr    serverNumber[AFS_NMAXNSERVERS];
 123         __be32                  serverUnique[AFS_NMAXNSERVERS];
 124         __be32                  serverPartition[AFS_NMAXNSERVERS];
 125         __be32                  serverFlags[AFS_NMAXNSERVERS];
 126         __be32                  volumeId[AFS_MAXTYPES];
 127         __be32                  cloneId;
 128         __be32                  flags;
 129         __be32                  spares1;
 130         __be32                  spares2;
 131         __be32                  spares3;
 132         __be32                  spares4;
 133         __be32                  spares5;
 134         __be32                  spares6;
 135         __be32                  spares7;
 136         __be32                  spares8;
 137         __be32                  spares9;
 138 };
 139
 140 struct afs_address_list {
 141         refcount_t              usage;
 142         unsigned int            version;
 143         unsigned int            nr_addrs;
 144         struct sockaddr_rxrpc   addrs[];
 145 };
 146
 147 extern void afs_put_address_list(struct afs_address_list *alist);
 148
 149 #endif /* AFS_VL_H */